Stats for DataNodes

[evamaxfield]

This relates to #427.

Has there been thought into adding a similar system like mentioned in the above issue but on the DataNode level.

print(pkg.group_node.data_node.inspect())

object_type: file (json)
original_name: 'this_was_a_file.json'
size: 123 MB
default_load: filepath

Would allow users that want to view the details of a node without opening it up a method to do so.

[akarve]

Yes. File extensions are critical since currently the package interface hides them. We already store orginal_name in the package tree so it's straightforward to resurface it. Size also makes sense though that is currently a dynamic server-side attribute. Will need to think about how to surface it statically.